BHP Billiton |
![]() June 2011 |
Pipe Jack 1800mm RCP for 40m Codmah were engaged by BHP Billiton to strengthen the existing 2.0mØ brick arch culvert (BAC) that passes under the rail corridor at rail chainage 70.508km. The strengthening of the culvert requires the jacking of 1.8mØ (O/D) pipes through the culvert, from each side, to form a sleeve so that if the BAC fails as a result of mine subsidence, the track formation and the waterway area will be retained by the concrete lining.
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